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    <script>
      // 作业1.用数组map方法处理['张三','李四','王五'] => [{uname:'张三',age:18},{uname:'李四',age:18},{uname:'王五',age:18}]
      let arr = ['张三', '李四', '王五']
      arr.map(item=>{
        // console.log(item);
        item.slice()
      })
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